Coupling for use with boring tool or bit



FIG. 1 is a bottom perspective view of a coupling for use with a boring tool or bit showing my new design.

FIG. 2 is a top perspective view thereof;

FIG. 3 is a reduced exploded top view thereof;

FIG. 4 is a reduced exploded bottom perspective view thereof. 

The ornamental design for a coupling for use with a boring tool or bit, as shown and described. 